let cat = {
  name:"小花猫",
  age:100,
  cry(){
    console.log("小花猫猫喵叫....")
  }
}

//定义对象时，直接导出
 export let dog= {
  name: "小花狗",
  age: 2,
  hi() {
    console.log("小花狗说 hi...");
  }
}

//使用批量导出
export {cat,dog}
